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Simplifying X4 + -7x3 + -18x2 = 0 Reorder the terms: X4 + -18x2 + -7x3 = 0 Solving X4 + -18x2 + -7x3 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '18x2' to each side of the equation. X4 + -18x2 + 18x2 + -7x3 = 0 + 18x2 Combine like terms: -18x2 + 18x2 = 0 X4 + 0 + -7x3 = 0 + 18x2 X4 + -7x3 = 0 + 18x2 Remove the zero: X4 + -7x3 = 18x2 Add '7x3' to each side of the equation. X4 + -7x3 + 7x3 = 18x2 + 7x3 Combine like terms: -7x3 + 7x3 = 0 X4 + 0 = 18x2 + 7x3 X4 = 18x2 + 7x3 Simplifying X4 = 18x2 + 7x3 Reorder the terms: X4 + -18x2 + -7x3 = 18x2 + -18x2 + 7x3 + -7x3 Combine like terms: 18x2 + -18x2 = 0 X4 + -18x2 + -7x3 = 0 + 7x3 + -7x3 X4 + -18x2 + -7x3 = 7x3 + -7x3 Combine like terms: 7x3 + -7x3 = 0 X4 + -18x2 + -7x3 = 0 The solution to this equation could not be determined.
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